panel set twindow_function vz
The VZ function returns the z-component of the difference between the global velocity vector of the I_MARKER (i1) and the global velocity vector of the J_MARKER (i2) as computed in the coordinate system of the R_MARKER (i3).
Format:
panel set twindow_function vz |
|---|
i_marker_name = | an existing marker |
j_marker_name = | an existing marker |
r_marker_name = | an existing marker |
reference_frame_marker = | an existing marker |
Example:
panel set twindow_function vz & |
|---|
i_marker_name = | marker_1 & |
j_marker_name = | marker_2 |
Description:
Parameter | Value Type | Description |
|---|
I_marker_name | An Existing Marker | Specifies an existing marker used as the I_MARKER (i1) in the evaluation of the function. |
J_marker_name | An Existing Marker | Specifies an existing marker used as the J_MARKER (i2) in the evaluation of the function. |
R_marker_name | An Existing Marker | Specifies the marker used as the R_MARKER (i3) with respect to which you want Adams to evaluate the function. |
Reference_frame_marker | An Existing Marker | |
Extended Definition:
1. Mathematically, VZ is calculated as follows:
VZ = [ Vi1 - Vi2] dot_product_with zi3
where Vi1 is the velocity of the I_MARKER (i1) in ground, Vi2 is the velocity of the J_MARKER (i2) in ground, and zi3 is the unit vector along the z-axis of the R_MARKER (i3) .
2. You may identify a marker by typing its name or by picking it from the screen.
If the marker is not visible on the screen, you must type the name. You may also find it convenient to type the name even if the marker is displayed.
If you created the marker by reading an Adams data set or graphics file, the marker name is the letters MAR followed by the Adams data set marker ID number. The name of Adams MARKER/101 is MAR101, for example. If you created the marker during preprocessing, you gave it a name at that time.
If a marker is available by default, you may identify it by entering its name only. If it is not, you must enter its full name. To identify a marker under a different part, for instance, you may need to enter the model and part names as well. For example, you may specify marker 'pivot' from model 'links', part 'lower_arm' by entering ".links.lower_arm.pivot".
You must separate multiple marker names by commas.
If the marker is visible in one of your views, you may identify it by picking on it.
You need not separate multiple marker picks by commas.
Tips:
1. If you type a "?", Adams View will list the markers available by default.
2. If you do not supply the the r_marker_name parameter, Adams will evaluate the function in the ground reference frame.